- Aug 10, 2019
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DougBradyHiFi said:The rational is that although we cannot hear beyond the upper range of hearing limits (over 20kHz) the frequencies that are up there affect the audible ones we can hear (harmonics) and so shape the sound. All I can say is that we have sold these devices on a sale or return basis-like all hi-fi-because you cannot predict what the customer will hear.
